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Injen axle‑back exhaust for 2012–2015 Honda Civic Si 2.4L. This polished axle‑back system is built from mandrel‑bent premium stainless tubing and features resonated, rolled tips and polished 4.0" rolled ends. Handcrafted and TIG‑welded, the kit fits without cutting or welding and is dyno‑proven to add up to approximately 7 hp and 6 lb‑ft of torque while improving exhaust tone and looks.
Injen 12-15 Honda Civic Si 2.4L 4cyl SS Axle-back Exhaust
